25056873563 has 16 divisors (see below), whose sum is σ = 27257383584. Its totient is φ = 22937541120.

The previous prime is 25056873521. The next prime is 25056873587. The reversal of 25056873563 is 36537865052.

It is a cyclic number.

It is not a de Polignac number, because 25056873563 - 2²⁰ = 25055824987 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25056873593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524256 + ... + 2534162.

It is an arithmetic number, because the mean of its divisors is an integer number (1703586474).

Almost surely, 2^25056873563 is an apocalyptic number.

25056873563 is a deficient number, since it is larger than the sum of its proper divisors (2200510021).

25056873563 is a wasteful number, since it uses less digits than its factorization.

25056873563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13982.

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 25056873563 in words is "twenty-five billion, fifty-six million, eight hundred seventy-three thousand, five hundred sixty-three".